Alert archive / Maryland / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 14, 2021, 11:02 PM EDT for Talbot County, Maryland. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 14, 2021, 11:02 PM EDT (03:02 UTC)
- Expired
- Aug 14, 2021, 11:45 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.00 in
- Wind
- 40
County Talbot County, MD
The radar
The Dover AFB radar (KDOX), 54 km from the middle of the area, began a volume at 03:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 3.0 hours before the alert went out and 103 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1575 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1189 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
751
WWUS81 KPHI 150302
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
1102 PM EDT Sat Aug 14 2021
DEZ003-MDZ015-019-020-150345-
Inland Sussex DE-Queen Anne's MD-Talbot MD-Caroline MD-
1102 PM EDT Sat Aug 14 2021
...Strong thunderstorms will impact portions of southwestern Sussex,
Talbot and southern Caroline Counties through 1145 PM EDT...
At 1101 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Waldorf to near University Of Maryland
Center For Environmental Studies to near Laurel. Movement was
northeast at 5 mph.
HAZARD...Wind gusts up to 40 mph and torrential rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Easton, Talbot, Seaford, Laurel, Federalsburg, Bridgeville, Delmar,
Trappe, St. Michaels, Preston, Oxford, Smithville, Copperville,
Agner, Choptank, Windyhill, Tanyard, Harmony, Tilghman Island and
Matthews.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3846 7569 3864 7571 3869 7577 3870 7590
3857 7604 3870 7623 3876 7622 3871 7628
3878 7629 3877 7632 3867 7634 3874 7634
3875 7637 3886 7626 3884 7627 3879 7620
3887 7619 3890 7603 3866 7538 3845 7540
TIME...MOT...LOC 0301Z 225DEG 5KT 3857 7687 3856 7620 3852 7564
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
BAHThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 1:47 AM EDT | Special Marine Warning | PHI | 58 min | |
| Aug 14, 11:34 PM EDT | Areal Flood Advisory | PHI | Kent | 116 min |
| Aug 15, 12:36 AM EDT | Flash Flood Warning | PHI | Kent | 3 hr |
Nearby
Special Weather Statements in Maryland, 2021Every special weather statement in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.